that way qtbase will find its spec without hacking .qmake.cache.
note that passing "-spec default" on the command line would have already
triggered the normal path, so artificial limitation did not even provide
safety against abuse (it is arguably pointless/counterproductive for
other projects than qtbase to have a default spec).
Change-Id: Ib0c3e6498fd70cd6f9561951d72a47165878bb33
Reviewed-by: Joerg Bornemann <joerg.bornemann@nokia.com>
Reviewed-by: Marius Storm-Olsen <marius.storm-olsen@nokia.com>
c3a1af63ae